I'm seeing a spurt of tailbiters on the forum lately so I thought we could all commiserate together. Post pics of your betta's mangled fins so we can all sympathize with you because we've been there too. The little finbiters.

Here is Crichton. Several months ago, he was scared stiff when a cat fell in a tank next to his and made a big commotion. I took a 2 hour nap and when I woke up, he had done this:
I am happy to report his fins grew back completely, albeit his tail is now part red when it was all black. But I have added 2 more tailbiters to my collection. Sigh.

I have only had one tailbiter. His triggers were when I moved his tank an when he could see one of my other Bettas, Melvin. He was fine with the other fish just not him for some reason. lol
Him before (he was a double tail):
Him during different stages of tail biting:
His name was Mandala. :)

Dont have a tailbiter as of now hopefully never, just divided my tank hopefully they wont upset eachother enough to abuse themselves!!
SAK - the cat fell into the tank NEXT to him and he did this!?!? poor little thing, that must have really scared him!!! what was in the tank next to him?? any damage in there??

This is part of the reason I don't keep long finned betta anymore. I always like PKs and HMPKs, then I took in some long finned fish and bought a few myself. Everyone started tailbiting around the same time, about 5 fish. Drove me absolutely mad and I vowed no more!

Ratchet bit his tail every now and then, let it start to grow back, and then chewed off a little more. But this time he decided that over half of his tail just needed to come off... and also two giant holes in his dorsal fin too. Turns out he's too aggressive to be kept in a divided tank, because if he can't get those other fish that are trespassing, he may as well take it out on himself.

BellasMom, it was a small 2.5g with cory cats in it (they were being QTed before being added to the community tank). My cat stepped on the plexiglass lid thinking it was sturdy and well, she's kinda fat and definitely klutzy so it gave and she plopped in up to her belly and started thrashing around. Poor guy, I think she may have bumped his tank a couple of times.

Aluyasha, wow, he really did a number on himself, didn't he?

Green Tea, he's so pretty! Why do the ones with the most gorgeous fins bite them off?

Tiki, I think you have the most tailbiters of all of us. Poor guys. Love Sesshy. :)

Pataflafla, Ratchet is so handsome. Did his fins grow back?

Indyfishy, haha. Yeah, he did do a nice even trim, didn't he?

Littlebitty, because he's so yellow, his tailbiting really stands out. That contrast between his sunshine fins and the background. Eek.

Silverfang, ahhh, so this is the famous Scuzi. What a nut. His fins are so nice, too. Scuzi, what will we do with you?